north-north-westerly
/ˌnɔːθnɔːθˈwɛstəli/ /ˌnɔːnɔːˈwɛstəli/adjective
= north-north-west.
adverb
= north-north-west.
Origin
Mid 19th century; earliest use found in Journal of the Royal Geographical Society of London. From north + north-westerly, after north-north-west.